Roller skate



June 16, 1931. w. VYVAN ETTEN 1,810,380

ROLLER SKA SE Filed May 20, 1930 2 Sheets-Sheet l INVENTOR,

ATTORNEY.

June 16, 1931. w. v. VAN ETTEN 1,310,330

ROLLER SKATE Filed Ma 20, 1930 2 Sheets-Sheet 2 Fig. 3'

INVEINTOR, Zk/iib/m/hww 2% 6% ATTORNEY.

meme 5.1m" 16," 193;

p PATENT OFFICE;

vsvan' mm," or 'nmnromix, women-on 7 30m mu nitration filed m 80, mo. Sflal I0. 454,070.

. invention to im rovements in roller skates and has for an ohgect to providev a brake for the rear wheels of the skates which is automatically applied when the .lfronfi'skate wheels are a particular distance gbove'tltefioor and the rear skate wheels remain. thereon.

#Another objectof my improvementis td "a brake for roller skates which is. lqir iimultaneonsly a plied to the float: and the 'j': -rusltate whee s when the front skate eels are a; particular distance above the floor-end the rear wheels are bearing there I Anothen-object of myiimprovement is to 1- provide eif beck stop and brake for roller slates whicl operates to.simultaneonsly returd farther. forward movement of the skates 'and forther upward movement of the k-front wheels" thereof when the 'have ,reoohed' a. particular position in eevation While [the rear skate wheels bear on the Another" object .;o.1ny. improvement is to provide a; backstop and brake for roller skates" adopted for; application thereto as an added piece' ofy simple construction and enroll cost. p Other objects oi in; improvement will 41p car as the description proceeds.

fattain these and other objects of my improvement withthe mechanism illustrated in the accompanying two sheets of drawings, form' 9, part of this specification, in 3 which igure 1 is a side elevation of a roller skate to which my'beck stop and brake device is attached in operative position, Fig. 2 is a side elevation of the rear wheels and a ortion' of the rear bolster of a roller skate with a modified form of my device in operative position thereon the remainder of the skate being broken awa. 2 Fig. 3 is a rear end elevation of F 1, Fig. 4 is a rear end elevation of the bee stop and brake device shown alone by itself, and Fig. 5 is a plan View of Fig.

Similar characters refer tosimilar parts in the several views. Certain parts are broken away to show other parts hidden thereby.

v 8 and in the forward With more particular reference tonhe ignated parts: The footplate 6 of ;a. roller skateof well-known make-hes front bolster 7 fastened forward to thebottoin surface. thereof and rear bolster 8 fastened minward to the bottom thereofl' Front skate-1 wheels 9 9 are mounted on front axle allf" for revolution and rear wheels 10, 10 are mounted on rear axle alO for revolution; t Frontnxle bearing, block an is pivotally fi' connected with front bolster 7 by in lire; mined in place by cotter pin 13. or axlew 1 bearing block 012 is pivotally connected with rear bolster 8 by pin 12 retained in place by cotter pin 14. r Brake attachment 15 has itsupper end 16 bent rearward to bear on the upper surface of the bottom wall of hollow rear bolster art of the attachment is 0 ning (115 throng which pin 12 is exten ed and retained therein by cotter pin. 14. The brake attachment assesdiagonally; downward and rearwar between rear wheels 10 10 and has Thead 17 17 on the lower end thereof. The front, edges of the T head are bent over at all (L17 'to conform in she e with the peri heries of wheels 10,

'10 on are disposed c ose thereto while in nonoperati'te position. Preferably the bottom edgeof the Tllhead is covered with a,

pad of rubber, as at 18, which is close to but not in contact with floor A when in nonoperative position.

Now assume the skate shown'in Fig. 1 to be on a skaters foot who tilts the front end of the skate upward till the floor line A-A is positioned relatively to the skate wheels at A--A', the front wheels 9 9 having assed upward a distance B in Fig. 1. hen upper end 16 of the brake attachment will have moved to 16 and the lower end thereof will have moved to 18 bearing on floor A while ed es a1? will be at (117 bearing on the rear w eels l0.

The contact of the rear end of the brekr 95 ing device with the floor will cause frictional resistance to the forward movement of the skate and the contact of edges a1? 'withrear wheels 10 will also cause frictional resistance andretard the revolution of the wheels thus acting to retard the forward skate movement. Thus the device serves as a brake whenever the front wheels are moved a distance equal to B above the floor and the rear wheels remain on the floor.

Furthermore since the rear end pad 18 is to the rear of the rear wheels its bearing on the floor will serve as a stop against which the skater may, to a degree, lean and catch himself if he be falling over backward. Thus, both the retardation of the forward movement of the skates when the brake is applied and the back stop provided by the rear end of the same will coo crate to aid the backwardly-falling skater in recovering balance.

The ad ofv rubber, or the like, shown as applie to the bottom surface of the brake at 18 in Fig. 1 serves to prevent injury to a rink floor by the brake end when forcibly bearing thereon as it passes thereover.

The optional construction illustrated in Fig. 2 is similar to that shown in Fi 1 except the pad is not fastened to the bra e end. Here rear bolster 19 isconnected with axle block (:21 by pin 21 retained in place by cotter in 22. Rear wheels 20, 20 are mounte for revolution on rear axle a20. Braking device 23 is engaged with the front end of pin 21 and its upper end 24 is bent rearward to bear on the bottom wall of the hollow bolster. Below the pin the braking device is extended rearward between wheels 20 and its rear end 25 is disposed adjacent floor CC while the front edges 26 thereof are adjacent the wheels 20.

Thus'the uncovered end 25 bears .directly on the floor or pavement CC when it operates as a brake and back stop. I

It is not desired to be understood that a properly shaped brake end will do any serious damage to a floor, the pad 18 is shown in order that no damage whatever may be possible to a floor by the use of my improved roller skate.

For use on pavement the unprotected end 25 is preferable and has in practice been found satisfactory and effective in aiding to prevent backward falling by the skater.

The upper end of the braking device shown at 16 and at 24 bears on the bottom wall of the. hollow bolster and serves to retain the lower end of the brake out of contact with the floor when the skate is in normal use running on both front and rear wheels. This construction is a art of the Having thus disclosed m invention, what I claim as new therein an desire to secure by Letters Patent is,-

1. A roller skate includin -a foot plate, front wheels attached to an mounted beneath the front end of the foot plate for revolution, a bolster fastened beneath the rear end of the foot plate, a rear axle connected to the bolster, rear wheels mounted on the rear axle for r ion, a brake device attached to the front side of the bolster extended rearward between the rear wheels, and a T head on the rear end of the brake device disposed adjacent the rear wheels and adjacent the floor on which the skate may run to bear on the rear wheels and on the goor when the front wheels are above the oor.

2. A roller skate including a foot plate,

front wheels attached to and mounted beneath thefront end of the foot plate for revolution, a bolster fastened beneath the rear end of the foot plate, a rear axle attached to the bolster, rear wheels mounted onthe rear axle for revolution, a brake device connected with the front side of the bolster extended rearward between the rear wheels, a T head on the rear end of the brake device adjacent the rear wheels, and a pad fastened on the T head adjacent the oor on which the skate may run to bear on the floor when the front wheels are above the floor and cause the T head to bear on the rear wheels.

3. A roller skate including a foot plate, front wheels connected with and mounted beneath the front end of the foot late for revolution, a hollow bolster fastene beneath the rear end of the foot plate, a pivot pin extended through openin s in the bottom of the bolster, an axle bloc mounted on the pivot pin for limited oscillation, a rear axle fastened in the axle block, rear wheels mounted on the rear axle for revolution, a

braking device en aged with the front end of the pivot pin having its upper end extended through the hollow rear bolster to bear on the bottom wall thereof and its lower end extended rearward between the rear wheels, and a T head on the rear end of the braking device adjacent the rear of therear wheels and adjacent the floor on which the skate may run to bear on the floor and on the rear wheels when the front wheels are above the floor.

WILLIAM V. VAN ETTEN.

extreme simplicity of shape ant design of suit any of the most'used roller skates. 

